I have noticed that there are 4 folders or whatever that are, which have appear in my LR library list.

These items contain zero images. Don't know how they got there.

I cannot delete them or find them. They seem to be within or related tomobile downloads.lrdata, at least when I try to locate them I am directed to a folder called PICTURES/LIGHTROOM which contains the mobile downloads.lrdata file. This has been no help.

I do use LR mobile and do have a collection on my iPhone and iPad (the same collection).

I am completely stymied in my effort to remove the "objects", pictured in my screen shot.

yes, I can see two sets of images on my iPhone 6s. One is called 'LIGHTROOM PHOTOS" the other is called "sharon mobile collection". These collections have identical images tho they are sorted differently.